Pulsed Laser Deposition of La0.6Sr0.4CoO3-δ-Ce0.9Gd0.1O2-δ Nano-Composite and Its Application to Gradient-Structured Thin-film Cathode of SOFC

Title
Pulsed Laser Deposition of La0.6Sr0.4CoO3-δ-Ce0.9Gd0.1O2-δ Nano-Composite and Its Application to Gradient-Structured Thin-film Cathode of SOFC
Authors
명두환황재연홍종일이해원김병국이종호손지원
Keywords
SOFC; Thin Film; Nano structure; composite cathode
Issue Date
2011-08
Publisher
Journal of the Electrochemical Society
Citation
VOL 158, NO 8, B1000-B1006
Abstract
Overcoming the structural instability of a single-phase thin-film-processed cathode by replacing it with a cathode-electrolyte composite thin-film cathode is presented. The effect of the deposition materials change from a single-phase lanthanum strontium cobaltite (LSC) to a LSC-gadolinia-doped ceria (GDC) composite and the influence of the variations of pulsed laser deposition (PLD) parameters on thin-film cathode microstructures are discussed. By introducing the cathode-electrolyte composite concept to the thin-film deposition and employing a gradient cathode structure, the adhesion of the interface between the thin-film cathode and the electrolyte could be enhanced and as a result, much improved stability of high-temperature performance and structure of the thin-film-processed cathode could be obtained.
URI
http://pubs.kist.re.kr/handle/201004/39892
ISSN
0013-4651
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KIST Publication > Article
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